blob: b617f62c14c8464d7ffe9cb3631f06215bef8282 [file] [log] [blame]
Doug Zongker9931f7f2009-06-10 14:11:53 -07001/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
Tao Bao0c7839a2016-10-10 15:48:37 -070017#include "updater/install.h"
18
Doug Zongkerfbf3c102009-06-24 09:36:20 -070019#include <ctype.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070020#include <errno.h>
Tao Bao361342c2016-02-08 11:15:50 -080021#include <fcntl.h>
22#include <ftw.h>
23#include <inttypes.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070024#include <stdarg.h>
Doug Zongkerfbf3c102009-06-24 09:36:20 -070025#include <stdio.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070026#include <stdlib.h>
27#include <string.h>
Tao Bao361342c2016-02-08 11:15:50 -080028#include <sys/capability.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070029#include <sys/mount.h>
30#include <sys/stat.h>
31#include <sys/types.h>
Doug Zongkera3f89ea2009-09-10 14:10:48 -070032#include <sys/wait.h>
Nick Kralevich5dbdef02013-09-07 14:41:06 -070033#include <sys/xattr.h>
Tao Bao361342c2016-02-08 11:15:50 -080034#include <time.h>
35#include <unistd.h>
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070036#include <utime.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070037
Yabin Cui64be2132016-02-03 18:16:02 -080038#include <memory>
Tao Bao361342c2016-02-08 11:15:50 -080039#include <string>
Yabin Cui64be2132016-02-03 18:16:02 -080040#include <vector>
41
Tao Baod0f30882016-11-03 23:52:01 -070042#include <android-base/file.h>
Tao Bao039f2da2016-11-22 16:29:50 -080043#include <android-base/logging.h>
Tianjie Xu5fe280a2016-10-17 18:15:20 -070044#include <android-base/parsedouble.h>
Tao Baod0f30882016-11-03 23:52:01 -070045#include <android-base/parseint.h>
Elliott Hughescb220402016-09-23 15:30:55 -070046#include <android-base/properties.h>
Elliott Hughes4b166f02015-12-04 15:30:20 -080047#include <android-base/stringprintf.h>
Tao Baod0f30882016-11-03 23:52:01 -070048#include <android-base/strings.h>
Tianjie Xu22f11202018-08-27 10:50:31 -070049#include <android-base/unique_fd.h>
Tao Bao0d3f84f2016-12-28 15:09:20 -080050#include <applypatch/applypatch.h>
51#include <bootloader_message/bootloader_message.h>
Tao Baode40ba52016-10-05 23:17:01 -070052#include <ext4_utils/wipe.h>
Tao Bao361342c2016-02-08 11:15:50 -080053#include <openssl/sha.h>
Elliott Hughes4bbd5bf2016-04-01 18:24:39 -070054#include <selinux/label.h>
55#include <selinux/selinux.h>
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070056#include <ziparchive/zip_archive.h>
Tao Bao1107d962015-09-09 17:16:55 -070057
Doug Zongker9931f7f2009-06-10 14:11:53 -070058#include "edify/expr.h"
Tianjie Xu1536db82019-05-14 10:54:43 -070059#include "edify/updater_interface.h"
60#include "edify/updater_runtime_interface.h"
Tao Bao17054c02018-05-03 22:41:23 -070061#include "otautil/dirutil.h"
Tao Bao1fc5bf32017-10-06 07:43:41 -070062#include "otautil/error_code.h"
Tao Bao9a319f02018-01-04 13:19:11 -080063#include "otautil/mounts.h"
Tao Bao09e468f2017-09-29 14:39:33 -070064#include "otautil/print_sha1.h"
Tao Bao2c526392018-05-03 23:01:13 -070065#include "otautil/sysutil.h"
Tianjie Xu1536db82019-05-14 10:54:43 -070066
Tianjie Xu27556d02019-05-22 14:48:35 -070067#ifndef __ANDROID__
68#include <cutils/memory.h> // for strlcpy
69#endif
70
Tianjie Xu1536db82019-05-14 10:54:43 -070071static bool UpdateBlockDeviceNameForPartition(UpdaterInterface* updater, Partition* partition) {
72 CHECK(updater);
73 std::string name = updater->FindBlockDeviceName(partition->name);
74 if (name.empty()) {
75 LOG(ERROR) << "Failed to find the block device " << partition->name;
76 return false;
77 }
78
79 partition->name = std::move(name);
80 return true;
81}
Doug Zongker8edb00c2009-06-11 17:21:44 -070082
Tianjie Xu5419ad32018-02-02 16:49:15 -080083// This is the updater side handler for ui_print() in edify script. Contents will be sent over to
84// the recovery side for on-screen display.
85Value* UIPrintFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
86 std::vector<std::string> args;
87 if (!ReadArgs(state, argv, &args)) {
88 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name);
89 }
90
91 std::string buffer = android::base::Join(args, "");
Tianjie Xu1536db82019-05-14 10:54:43 -070092 state->updater->UiPrint(buffer);
Tianjie Xu5419ad32018-02-02 16:49:15 -080093 return StringValue(buffer);
94}
95
96// package_extract_file(package_file[, dest_file])
97// Extracts a single package_file from the update package and writes it to dest_file,
98// overwriting existing files if necessary. Without the dest_file argument, returns the
99// contents of the package file as a binary blob.
100Value* PackageExtractFileFn(const char* name, State* state,
101 const std::vector<std::unique_ptr<Expr>>& argv) {
102 if (argv.size() < 1 || argv.size() > 2) {
103 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 or 2 args, got %zu", name,
104 argv.size());
105 }
106
107 if (argv.size() == 2) {
108 // The two-argument version extracts to a file.
109
110 std::vector<std::string> args;
111 if (!ReadArgs(state, argv, &args)) {
112 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse %zu args", name,
113 argv.size());
114 }
115 const std::string& zip_path = args[0];
Tianjie Xu60b242c2019-07-30 16:48:52 -0700116 std::string dest_path = args[1];
Tianjie Xu5419ad32018-02-02 16:49:15 -0800117
Tianjie Xu1536db82019-05-14 10:54:43 -0700118 ZipArchiveHandle za = state->updater->GetPackageHandle();
Tianjie Xu5419ad32018-02-02 16:49:15 -0800119 ZipEntry entry;
Elliott Hughesa86dddb2019-05-03 22:52:37 -0700120 if (FindEntry(za, zip_path, &entry) != 0) {
Tianjie Xu5419ad32018-02-02 16:49:15 -0800121 LOG(ERROR) << name << ": no " << zip_path << " in package";
122 return StringValue("");
123 }
124
Tianjie Xu60b242c2019-07-30 16:48:52 -0700125 // Update the destination of package_extract_file if it's a block device. During simulation the
126 // destination will map to a fake file.
127 if (std::string block_device_name = state->updater->FindBlockDeviceName(dest_path);
128 !block_device_name.empty()) {
129 dest_path = block_device_name;
130 }
131
Tianjie Xu22f11202018-08-27 10:50:31 -0700132 android::base::unique_fd fd(TEMP_FAILURE_RETRY(
133 open(dest_path.c_str(), O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)));
Tianjie Xu5419ad32018-02-02 16:49:15 -0800134 if (fd == -1) {
135 PLOG(ERROR) << name << ": can't open " << dest_path << " for write";
136 return StringValue("");
137 }
138
139 bool success = true;
140 int32_t ret = ExtractEntryToFile(za, &entry, fd);
141 if (ret != 0) {
142 LOG(ERROR) << name << ": Failed to extract entry \"" << zip_path << "\" ("
143 << entry.uncompressed_length << " bytes) to \"" << dest_path
144 << "\": " << ErrorCodeString(ret);
145 success = false;
146 }
Tianjie Xu22f11202018-08-27 10:50:31 -0700147 if (fsync(fd) == -1) {
Tianjie Xu5419ad32018-02-02 16:49:15 -0800148 PLOG(ERROR) << "fsync of \"" << dest_path << "\" failed";
149 success = false;
150 }
Tianjie Xu22f11202018-08-27 10:50:31 -0700151
152 if (close(fd.release()) != 0) {
Tianjie Xu5419ad32018-02-02 16:49:15 -0800153 PLOG(ERROR) << "close of \"" << dest_path << "\" failed";
154 success = false;
155 }
156
157 return StringValue(success ? "t" : "");
158 } else {
159 // The one-argument version returns the contents of the file as the result.
160
161 std::vector<std::string> args;
162 if (!ReadArgs(state, argv, &args)) {
163 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse %zu args", name,
164 argv.size());
165 }
166 const std::string& zip_path = args[0];
167
Tianjie Xu1536db82019-05-14 10:54:43 -0700168 ZipArchiveHandle za = state->updater->GetPackageHandle();
Tianjie Xu5419ad32018-02-02 16:49:15 -0800169 ZipEntry entry;
Elliott Hughesa86dddb2019-05-03 22:52:37 -0700170 if (FindEntry(za, zip_path, &entry) != 0) {
Tianjie Xu5419ad32018-02-02 16:49:15 -0800171 return ErrorAbort(state, kPackageExtractFileFailure, "%s(): no %s in package", name,
172 zip_path.c_str());
173 }
174
175 std::string buffer;
176 buffer.resize(entry.uncompressed_length);
177
178 int32_t ret =
179 ExtractToMemory(za, &entry, reinterpret_cast<uint8_t*>(&buffer[0]), buffer.size());
180 if (ret != 0) {
181 return ErrorAbort(state, kPackageExtractFileFailure,
182 "%s: Failed to extract entry \"%s\" (%zu bytes) to memory: %s", name,
183 zip_path.c_str(), buffer.size(), ErrorCodeString(ret));
184 }
185
Tao Bao511d7592018-06-19 15:56:49 -0700186 return new Value(Value::Type::BLOB, buffer);
Tianjie Xu5419ad32018-02-02 16:49:15 -0800187 }
188}
189
Tao Bao5609bc82018-06-20 00:30:48 -0700190// patch_partition_check(target_partition, source_partition)
191// Checks if the target and source partitions have the desired checksums to be patched. It returns
192// directly, if the target partition already has the expected checksum. Otherwise it in turn
193// checks the integrity of the source partition and the backup file on /cache.
Tianjie Xu5419ad32018-02-02 16:49:15 -0800194//
Tao Bao5609bc82018-06-20 00:30:48 -0700195// For example, patch_partition_check(
196// "EMMC:/dev/block/boot:12342568:8aaacf187a6929d0e9c3e9e46ea7ff495b43424d",
197// "EMMC:/dev/block/boot:12363048:06b0b16299dcefc94900efed01e0763ff644ffa4")
198Value* PatchPartitionCheckFn(const char* name, State* state,
199 const std::vector<std::unique_ptr<Expr>>& argv) {
200 if (argv.size() != 2) {
Tianjie Xu5419ad32018-02-02 16:49:15 -0800201 return ErrorAbort(state, kArgsParsingFailure,
Tao Bao5609bc82018-06-20 00:30:48 -0700202 "%s(): Invalid number of args (expected 2, got %zu)", name, argv.size());
Tianjie Xu5419ad32018-02-02 16:49:15 -0800203 }
204
205 std::vector<std::string> args;
Tao Bao5609bc82018-06-20 00:30:48 -0700206 if (!ReadArgs(state, argv, &args, 0, 2)) {
207 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name);
Tianjie Xu5419ad32018-02-02 16:49:15 -0800208 }
209
Tao Bao5609bc82018-06-20 00:30:48 -0700210 std::string err;
211 auto target = Partition::Parse(args[0], &err);
212 if (!target) {
213 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse target \"%s\": %s", name,
214 args[0].c_str(), err.c_str());
Tianjie Xu5419ad32018-02-02 16:49:15 -0800215 }
216
Tao Bao5609bc82018-06-20 00:30:48 -0700217 auto source = Partition::Parse(args[1], &err);
218 if (!source) {
219 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse source \"%s\": %s", name,
220 args[1].c_str(), err.c_str());
Tianjie Xu5419ad32018-02-02 16:49:15 -0800221 }
222
Tianjie Xu1536db82019-05-14 10:54:43 -0700223 if (!UpdateBlockDeviceNameForPartition(state->updater, &source) ||
224 !UpdateBlockDeviceNameForPartition(state->updater, &target)) {
225 return StringValue("");
226 }
227
Tao Bao5609bc82018-06-20 00:30:48 -0700228 bool result = PatchPartitionCheck(target, source);
229 return StringValue(result ? "t" : "");
Tianjie Xu5419ad32018-02-02 16:49:15 -0800230}
231
Tao Bao5609bc82018-06-20 00:30:48 -0700232// patch_partition(target, source, patch)
233// Applies the given patch to the source partition, and writes the result to the target partition.
234//
235// For example, patch_partition(
236// "EMMC:/dev/block/boot:12342568:8aaacf187a6929d0e9c3e9e46ea7ff495b43424d",
237// "EMMC:/dev/block/boot:12363048:06b0b16299dcefc94900efed01e0763ff644ffa4",
238// package_extract_file("boot.img.p"))
239Value* PatchPartitionFn(const char* name, State* state,
240 const std::vector<std::unique_ptr<Expr>>& argv) {
241 if (argv.size() != 3) {
242 return ErrorAbort(state, kArgsParsingFailure,
243 "%s(): Invalid number of args (expected 3, got %zu)", name, argv.size());
Tianjie Xu5419ad32018-02-02 16:49:15 -0800244 }
245
246 std::vector<std::string> args;
Tao Bao5609bc82018-06-20 00:30:48 -0700247 if (!ReadArgs(state, argv, &args, 0, 2)) {
248 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name);
Tianjie Xu5419ad32018-02-02 16:49:15 -0800249 }
Tianjie Xu5419ad32018-02-02 16:49:15 -0800250
Tao Bao5609bc82018-06-20 00:30:48 -0700251 std::string err;
252 auto target = Partition::Parse(args[0], &err);
253 if (!target) {
254 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse target \"%s\": %s", name,
255 args[0].c_str(), err.c_str());
Tianjie Xu5419ad32018-02-02 16:49:15 -0800256 }
Tianjie Xu5419ad32018-02-02 16:49:15 -0800257
Tao Bao5609bc82018-06-20 00:30:48 -0700258 auto source = Partition::Parse(args[1], &err);
259 if (!source) {
260 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse source \"%s\": %s", name,
261 args[1].c_str(), err.c_str());
262 }
263
264 std::vector<std::unique_ptr<Value>> values;
265 if (!ReadValueArgs(state, argv, &values, 2, 1) || values[0]->type != Value::Type::BLOB) {
266 return ErrorAbort(state, kArgsParsingFailure, "%s(): Invalid patch arg", name);
267 }
268
Tianjie Xu1536db82019-05-14 10:54:43 -0700269 if (!UpdateBlockDeviceNameForPartition(state->updater, &source) ||
270 !UpdateBlockDeviceNameForPartition(state->updater, &target)) {
271 return StringValue("");
272 }
273
Tao Bao5234ad42019-09-23 10:28:54 -0700274 bool result = PatchPartition(target, source, *values[0], nullptr, true);
Tao Bao5609bc82018-06-20 00:30:48 -0700275 return StringValue(result ? "t" : "");
Tianjie Xu5419ad32018-02-02 16:49:15 -0800276}
277
Doug Zongker3d177d02010-07-01 09:18:44 -0700278// mount(fs_type, partition_type, location, mount_point)
Tao Bao0831d0b2016-11-03 23:25:04 -0700279// mount(fs_type, partition_type, location, mount_point, mount_options)
Tianjie Xuc4447322017-03-06 14:44:59 -0800280
Doug Zongker3d177d02010-07-01 09:18:44 -0700281// fs_type="ext4" partition_type="EMMC" location=device
Tianjie Xuc4447322017-03-06 14:44:59 -0800282Value* MountFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
283 if (argv.size() != 4 && argv.size() != 5) {
284 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 4-5 args, got %zu", name,
285 argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800286 }
287
288 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800289 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800290 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
291 }
292 const std::string& fs_type = args[0];
293 const std::string& partition_type = args[1];
294 const std::string& location = args[2];
295 const std::string& mount_point = args[3];
296 std::string mount_options;
297
Tianjie Xuc4447322017-03-06 14:44:59 -0800298 if (argv.size() == 5) {
Tao Bao039f2da2016-11-22 16:29:50 -0800299 mount_options = args[4];
300 }
301
302 if (fs_type.empty()) {
303 return ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name);
304 }
305 if (partition_type.empty()) {
306 return ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty",
307 name);
308 }
309 if (location.empty()) {
310 return ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name);
311 }
312 if (mount_point.empty()) {
313 return ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty",
314 name);
315 }
316
Tianjie Xu1536db82019-05-14 10:54:43 -0700317 auto updater = state->updater;
318 if (updater->GetRuntime()->Mount(location, mount_point, fs_type, mount_options) != 0) {
Tianjie Xu58d59122019-05-03 01:05:04 -0700319 updater->UiPrint(android::base::StringPrintf("%s: Failed to mount %s at %s: %s", name,
320 location.c_str(), mount_point.c_str(),
321 strerror(errno)));
Tao Bao039f2da2016-11-22 16:29:50 -0800322 return StringValue("");
323 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700324
Tao Bao039f2da2016-11-22 16:29:50 -0800325 return StringValue(mount_point);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700326}
327
Doug Zongker8edb00c2009-06-11 17:21:44 -0700328// is_mounted(mount_point)
Tianjie Xuc4447322017-03-06 14:44:59 -0800329Value* IsMountedFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
330 if (argv.size() != 1) {
331 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800332 }
Tianjie Xu5fe280a2016-10-17 18:15:20 -0700333
Tao Bao039f2da2016-11-22 16:29:50 -0800334 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800335 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800336 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
337 }
338 const std::string& mount_point = args[0];
339 if (mount_point.empty()) {
340 return ErrorAbort(state, kArgsParsingFailure,
341 "mount_point argument to unmount() can't be empty");
342 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700343
Tianjie Xu1536db82019-05-14 10:54:43 -0700344 auto updater_runtime = state->updater->GetRuntime();
345 if (!updater_runtime->IsMounted(mount_point)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800346 return StringValue("");
347 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700348
Tao Bao039f2da2016-11-22 16:29:50 -0800349 return StringValue(mount_point);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700350}
351
Tianjie Xuc4447322017-03-06 14:44:59 -0800352Value* UnmountFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
353 if (argv.size() != 1) {
354 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800355 }
356 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800357 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800358 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
359 }
360 const std::string& mount_point = args[0];
361 if (mount_point.empty()) {
362 return ErrorAbort(state, kArgsParsingFailure,
363 "mount_point argument to unmount() can't be empty");
364 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700365
Tianjie Xu1536db82019-05-14 10:54:43 -0700366 auto updater = state->updater;
367 auto [mounted, result] = updater->GetRuntime()->Unmount(mount_point);
368 if (!mounted) {
Tianjie Xu58d59122019-05-03 01:05:04 -0700369 updater->UiPrint(
370 android::base::StringPrintf("Failed to unmount %s: No such volume", mount_point.c_str()));
Tao Bao039f2da2016-11-22 16:29:50 -0800371 return nullptr;
Tianjie Xu1536db82019-05-14 10:54:43 -0700372 } else if (result != 0) {
373 updater->UiPrint(android::base::StringPrintf("Failed to unmount %s: %s", mount_point.c_str(),
374 strerror(errno)));
Tao Bao039f2da2016-11-22 16:29:50 -0800375 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700376
Tao Bao039f2da2016-11-22 16:29:50 -0800377 return StringValue(mount_point);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700378}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700379
Stephen Smalley779701d2012-02-09 14:13:23 -0500380// format(fs_type, partition_type, location, fs_size, mount_point)
Doug Zongker9931f7f2009-06-10 14:11:53 -0700381//
Tao Bao039f2da2016-11-22 16:29:50 -0800382// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
383// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
JP Abgrall37aedb32014-06-16 19:07:39 -0700384// if fs_size == 0, then make fs uses the entire partition.
Ken Sumrall8f132ed2011-01-14 18:55:05 -0800385// if fs_size > 0, that is the size to use
JP Abgrall37aedb32014-06-16 19:07:39 -0700386// if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs")
Tianjie Xuc4447322017-03-06 14:44:59 -0800387Value* FormatFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
388 if (argv.size() != 5) {
389 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 5 args, got %zu", name,
390 argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800391 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500392
Tao Bao039f2da2016-11-22 16:29:50 -0800393 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800394 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800395 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
396 }
397 const std::string& fs_type = args[0];
398 const std::string& partition_type = args[1];
399 const std::string& location = args[2];
400 const std::string& fs_size = args[3];
401 const std::string& mount_point = args[4];
Tianjie Xu5fe280a2016-10-17 18:15:20 -0700402
Tao Bao039f2da2016-11-22 16:29:50 -0800403 if (fs_type.empty()) {
404 return ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name);
405 }
406 if (partition_type.empty()) {
407 return ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty",
408 name);
409 }
410 if (location.empty()) {
411 return ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name);
412 }
413 if (mount_point.empty()) {
414 return ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty",
415 name);
416 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700417
Tao Bao039f2da2016-11-22 16:29:50 -0800418 int64_t size;
419 if (!android::base::ParseInt(fs_size, &size)) {
Tianjie Xu5ad80282018-01-28 15:37:48 -0800420 return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse int in %s", name,
Tao Bao039f2da2016-11-22 16:29:50 -0800421 fs_size.c_str());
422 }
423
Tianjie Xu1536db82019-05-14 10:54:43 -0700424 auto updater_runtime = state->updater->GetRuntime();
Tao Bao039f2da2016-11-22 16:29:50 -0800425 if (fs_type == "ext4") {
Tao Bao3d69f0d2018-12-20 09:44:06 -0800426 std::vector<std::string> mke2fs_args = {
427 "/system/bin/mke2fs", "-t", "ext4", "-b", "4096", location
428 };
Jin Qianded2dac2017-04-21 14:36:12 -0700429 if (size != 0) {
Tao Bao3d69f0d2018-12-20 09:44:06 -0800430 mke2fs_args.push_back(std::to_string(size / 4096LL));
Jin Qianded2dac2017-04-21 14:36:12 -0700431 }
432
Tianjie Xu1536db82019-05-14 10:54:43 -0700433 if (auto status = updater_runtime->RunProgram(mke2fs_args, true); status != 0) {
Jin Qian502fd1c2017-11-02 11:58:12 -0700434 LOG(ERROR) << name << ": mke2fs failed (" << status << ") on " << location;
435 return StringValue("");
Jin Qianded2dac2017-04-21 14:36:12 -0700436 }
437
Tianjie Xu1536db82019-05-14 10:54:43 -0700438 if (auto status = updater_runtime->RunProgram(
439 { "/system/bin/e2fsdroid", "-e", "-a", mount_point, location }, true);
Tao Bao3d69f0d2018-12-20 09:44:06 -0800440 status != 0) {
Jin Qianded2dac2017-04-21 14:36:12 -0700441 LOG(ERROR) << name << ": e2fsdroid failed (" << status << ") on " << location;
Tao Bao039f2da2016-11-22 16:29:50 -0800442 return StringValue("");
Doug Zongker9931f7f2009-06-10 14:11:53 -0700443 }
Tao Bao039f2da2016-11-22 16:29:50 -0800444 return StringValue(location);
Tao Bao3d69f0d2018-12-20 09:44:06 -0800445 }
446
447 if (fs_type == "f2fs") {
Tao Bao039f2da2016-11-22 16:29:50 -0800448 if (size < 0) {
449 LOG(ERROR) << name << ": fs_size can't be negative for f2fs: " << fs_size;
450 return StringValue("");
Doug Zongker9931f7f2009-06-10 14:11:53 -0700451 }
Tao Bao3d69f0d2018-12-20 09:44:06 -0800452 std::vector<std::string> f2fs_args = {
Tao Baoc674dfb2018-12-20 14:25:15 -0800453 "/system/bin/make_f2fs", "-g", "android", "-w", "512", location
Tao Bao3d69f0d2018-12-20 09:44:06 -0800454 };
455 if (size >= 512) {
456 f2fs_args.push_back(std::to_string(size / 512));
457 }
Tianjie Xu1536db82019-05-14 10:54:43 -0700458 if (auto status = updater_runtime->RunProgram(f2fs_args, true); status != 0) {
Tao Baoc674dfb2018-12-20 14:25:15 -0800459 LOG(ERROR) << name << ": make_f2fs failed (" << status << ") on " << location;
Tao Bao039f2da2016-11-22 16:29:50 -0800460 return StringValue("");
461 }
Jaegeuk Kimc1c73112017-11-28 19:48:05 -0800462
Tianjie Xu1536db82019-05-14 10:54:43 -0700463 if (auto status = updater_runtime->RunProgram(
464 { "/system/bin/sload_f2fs", "-t", mount_point, location }, true);
Tao Baoc674dfb2018-12-20 14:25:15 -0800465 status != 0) {
466 LOG(ERROR) << name << ": sload_f2fs failed (" << status << ") on " << location;
Jaegeuk Kimc1c73112017-11-28 19:48:05 -0800467 return StringValue("");
468 }
469
Tao Bao039f2da2016-11-22 16:29:50 -0800470 return StringValue(location);
Tao Bao039f2da2016-11-22 16:29:50 -0800471 }
472
Tao Bao3d69f0d2018-12-20 09:44:06 -0800473 LOG(ERROR) << name << ": unsupported fs_type \"" << fs_type << "\" partition_type \""
474 << partition_type << "\"";
Tao Bao039f2da2016-11-22 16:29:50 -0800475 return nullptr;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700476}
477
Tianjie Xuc4447322017-03-06 14:44:59 -0800478Value* ShowProgressFn(const char* name, State* state,
479 const std::vector<std::unique_ptr<Expr>>& argv) {
480 if (argv.size() != 2) {
481 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
482 argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800483 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700484
Tao Bao039f2da2016-11-22 16:29:50 -0800485 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800486 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800487 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
488 }
489 const std::string& frac_str = args[0];
490 const std::string& sec_str = args[1];
Tianjie Xu5fe280a2016-10-17 18:15:20 -0700491
Tao Bao039f2da2016-11-22 16:29:50 -0800492 double frac;
493 if (!android::base::ParseDouble(frac_str.c_str(), &frac)) {
Tianjie Xu5ad80282018-01-28 15:37:48 -0800494 return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse double in %s", name,
Tao Bao039f2da2016-11-22 16:29:50 -0800495 frac_str.c_str());
496 }
497 int sec;
498 if (!android::base::ParseInt(sec_str.c_str(), &sec)) {
Tianjie Xu5ad80282018-01-28 15:37:48 -0800499 return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse int in %s", name,
Tao Bao039f2da2016-11-22 16:29:50 -0800500 sec_str.c_str());
501 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700502
Tianjie Xu1536db82019-05-14 10:54:43 -0700503 state->updater->WriteToCommandPipe(android::base::StringPrintf("progress %f %d", frac, sec));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700504
Tao Bao039f2da2016-11-22 16:29:50 -0800505 return StringValue(frac_str);
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700506}
507
Tianjie Xu5419ad32018-02-02 16:49:15 -0800508Value* SetProgressFn(const char* name, State* state,
509 const std::vector<std::unique_ptr<Expr>>& argv) {
Tianjie Xuc4447322017-03-06 14:44:59 -0800510 if (argv.size() != 1) {
511 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800512 }
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700513
Tao Bao039f2da2016-11-22 16:29:50 -0800514 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800515 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800516 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
517 }
518 const std::string& frac_str = args[0];
Tianjie Xu5fe280a2016-10-17 18:15:20 -0700519
Tao Bao039f2da2016-11-22 16:29:50 -0800520 double frac;
521 if (!android::base::ParseDouble(frac_str.c_str(), &frac)) {
Tianjie Xu5ad80282018-01-28 15:37:48 -0800522 return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse double in %s", name,
Tao Bao039f2da2016-11-22 16:29:50 -0800523 frac_str.c_str());
524 }
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700525
Tianjie Xu1536db82019-05-14 10:54:43 -0700526 state->updater->WriteToCommandPipe(android::base::StringPrintf("set_progress %f", frac));
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700527
Tao Bao039f2da2016-11-22 16:29:50 -0800528 return StringValue(frac_str);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700529}
530
Tianjie Xuc4447322017-03-06 14:44:59 -0800531Value* GetPropFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
532 if (argv.size() != 1) {
533 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800534 }
535 std::string key;
536 if (!Evaluate(state, argv[0], &key)) {
537 return nullptr;
538 }
Tianjie Xu1536db82019-05-14 10:54:43 -0700539
540 auto updater_runtime = state->updater->GetRuntime();
541 std::string value = updater_runtime->GetProperty(key, "");
Doug Zongker8edb00c2009-06-11 17:21:44 -0700542
Tao Bao039f2da2016-11-22 16:29:50 -0800543 return StringValue(value);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700544}
545
Doug Zongker47cace92009-06-18 10:11:50 -0700546// file_getprop(file, key)
547//
548// interprets 'file' as a getprop-style file (key=value pairs, one
Tao Bao51d516e2016-11-03 14:49:01 -0700549// per line. # comment lines, blank lines, lines without '=' ignored),
Michael Rungeaa1a31e2014-04-25 18:47:18 -0700550// and returns the value for 'key' (or "" if it isn't defined).
Tianjie Xu5419ad32018-02-02 16:49:15 -0800551Value* FileGetPropFn(const char* name, State* state,
552 const std::vector<std::unique_ptr<Expr>>& argv) {
Tianjie Xuc4447322017-03-06 14:44:59 -0800553 if (argv.size() != 2) {
554 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
555 argv.size());
Tao Bao358c2ec2016-11-28 11:48:43 -0800556 }
557
558 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800559 if (!ReadArgs(state, argv, &args)) {
Tao Bao358c2ec2016-11-28 11:48:43 -0800560 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
561 }
562 const std::string& filename = args[0];
563 const std::string& key = args[1];
564
Tianjie Xu22f11202018-08-27 10:50:31 -0700565 std::string buffer;
Tianjie Xu1536db82019-05-14 10:54:43 -0700566 auto updater_runtime = state->updater->GetRuntime();
567 if (!updater_runtime->ReadFileToString(filename, &buffer)) {
Tianjie Xu22f11202018-08-27 10:50:31 -0700568 ErrorAbort(state, kFreadFailure, "%s: failed to read %s", name, filename.c_str());
Tao Bao358c2ec2016-11-28 11:48:43 -0800569 return nullptr;
570 }
571
Tao Bao358c2ec2016-11-28 11:48:43 -0800572 std::vector<std::string> lines = android::base::Split(buffer, "\n");
573 for (size_t i = 0; i < lines.size(); i++) {
574 std::string line = android::base::Trim(lines[i]);
575
576 // comment or blank line: skip to next line
577 if (line.empty() || line[0] == '#') {
578 continue;
579 }
580 size_t equal_pos = line.find('=');
581 if (equal_pos == std::string::npos) {
582 continue;
Tao Bao51d516e2016-11-03 14:49:01 -0700583 }
584
Tao Bao358c2ec2016-11-28 11:48:43 -0800585 // trim whitespace between key and '='
586 std::string str = android::base::Trim(line.substr(0, equal_pos));
Doug Zongker47cace92009-06-18 10:11:50 -0700587
Tao Bao358c2ec2016-11-28 11:48:43 -0800588 // not the key we're looking for
589 if (key != str) continue;
Doug Zongker47cace92009-06-18 10:11:50 -0700590
Tao Bao358c2ec2016-11-28 11:48:43 -0800591 return StringValue(android::base::Trim(line.substr(equal_pos + 1)));
592 }
Doug Zongker47cace92009-06-18 10:11:50 -0700593
Tao Bao358c2ec2016-11-28 11:48:43 -0800594 return StringValue("");
Doug Zongker47cace92009-06-18 10:11:50 -0700595}
596
Doug Zongker8edb00c2009-06-11 17:21:44 -0700597// apply_patch_space(bytes)
Tianjie Xu5419ad32018-02-02 16:49:15 -0800598Value* ApplyPatchSpaceFn(const char* name, State* state,
599 const std::vector<std::unique_ptr<Expr>>& argv) {
Tianjie Xuc4447322017-03-06 14:44:59 -0800600 if (argv.size() != 1) {
601 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 args, got %zu", name,
602 argv.size());
603 }
Tao Bao039f2da2016-11-22 16:29:50 -0800604 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800605 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800606 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
607 }
608 const std::string& bytes_str = args[0];
Doug Zongkerc4351c72010-02-22 14:46:32 -0800609
Tao Bao039f2da2016-11-22 16:29:50 -0800610 size_t bytes;
611 if (!android::base::ParseUint(bytes_str.c_str(), &bytes)) {
Tianjie Xu5ad80282018-01-28 15:37:48 -0800612 return ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count", name,
613 bytes_str.c_str());
Tao Bao039f2da2016-11-22 16:29:50 -0800614 }
Doug Zongkerc4351c72010-02-22 14:46:32 -0800615
Tianjie Xu99b73be2017-11-28 17:23:06 -0800616 // Skip the cache size check if the update is a retry.
Tao Bao5ee25662018-07-11 15:55:32 -0700617 if (state->is_retry || CheckAndFreeSpaceOnCache(bytes)) {
Tianjie Xu99b73be2017-11-28 17:23:06 -0800618 return StringValue("t");
619 }
620 return StringValue("");
Doug Zongkerc4351c72010-02-22 14:46:32 -0800621}
622
Tianjie Xuc4447322017-03-06 14:44:59 -0800623Value* WipeCacheFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
624 if (!argv.empty()) {
625 return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %zu", name,
626 argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800627 }
Tianjie Xu58d59122019-05-03 01:05:04 -0700628
Tianjie Xu1536db82019-05-14 10:54:43 -0700629 state->updater->WriteToCommandPipe("wipe_cache");
Tao Bao039f2da2016-11-22 16:29:50 -0800630 return StringValue("t");
Doug Zongkerd0181b82011-10-19 10:51:12 -0700631}
632
Tianjie Xuc4447322017-03-06 14:44:59 -0800633Value* RunProgramFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
634 if (argv.size() < 1) {
Tao Bao039f2da2016-11-22 16:29:50 -0800635 return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name);
636 }
Tianjie Xu5fe280a2016-10-17 18:15:20 -0700637
Tao Bao039f2da2016-11-22 16:29:50 -0800638 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800639 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800640 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
641 }
Doug Zongkera3f89ea2009-09-10 14:10:48 -0700642
Tianjie Xu1536db82019-05-14 10:54:43 -0700643 auto updater_runtime = state->updater->GetRuntime();
644 auto status = updater_runtime->RunProgram(args, false);
Tao Bao039f2da2016-11-22 16:29:50 -0800645 return StringValue(std::to_string(status));
Doug Zongkera3f89ea2009-09-10 14:10:48 -0700646}
647
Tao Bao511d7592018-06-19 15:56:49 -0700648// read_file(filename)
Tao Baobafd6c72018-07-09 15:08:50 -0700649// Reads a local file 'filename' and returns its contents as a string Value.
Tianjie Xuc4447322017-03-06 14:44:59 -0800650Value* ReadFileFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
651 if (argv.size() != 1) {
652 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800653 }
Tianjie Xu5fe280a2016-10-17 18:15:20 -0700654
Tao Bao039f2da2016-11-22 16:29:50 -0800655 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800656 if (!ReadArgs(state, argv, &args)) {
Tao Bao511d7592018-06-19 15:56:49 -0700657 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name);
Tao Bao039f2da2016-11-22 16:29:50 -0800658 }
659 const std::string& filename = args[0];
Doug Zongker512536a2010-02-17 16:11:44 -0800660
Tao Baobafd6c72018-07-09 15:08:50 -0700661 std::string contents;
Tianjie Xu1536db82019-05-14 10:54:43 -0700662 auto updater_runtime = state->updater->GetRuntime();
663 if (updater_runtime->ReadFileToString(filename, &contents)) {
Tao Baobafd6c72018-07-09 15:08:50 -0700664 return new Value(Value::Type::STRING, std::move(contents));
Tao Bao039f2da2016-11-22 16:29:50 -0800665 }
Tao Bao511d7592018-06-19 15:56:49 -0700666
667 // Leave it to caller to handle the failure.
Tao Baobafd6c72018-07-09 15:08:50 -0700668 PLOG(ERROR) << name << ": Failed to read " << filename;
Tao Bao511d7592018-06-19 15:56:49 -0700669 return StringValue("");
Doug Zongker512536a2010-02-17 16:11:44 -0800670}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700671
Tao Baod0f30882016-11-03 23:52:01 -0700672// write_value(value, filename)
673// Writes 'value' to 'filename'.
674// Example: write_value("960000", "/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq")
Tianjie Xuc4447322017-03-06 14:44:59 -0800675Value* WriteValueFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
676 if (argv.size() != 2) {
677 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
678 argv.size());
Tao Baod0f30882016-11-03 23:52:01 -0700679 }
680
681 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800682 if (!ReadArgs(state, argv, &args)) {
Tao Baod0f30882016-11-03 23:52:01 -0700683 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name);
684 }
685
686 const std::string& filename = args[1];
687 if (filename.empty()) {
688 return ErrorAbort(state, kArgsParsingFailure, "%s(): Filename cannot be empty", name);
689 }
690
691 const std::string& value = args[0];
Tianjie Xu1536db82019-05-14 10:54:43 -0700692 auto updater_runtime = state->updater->GetRuntime();
693 if (!updater_runtime->WriteStringToFile(value, filename)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800694 PLOG(ERROR) << name << ": Failed to write to \"" << filename << "\"";
Tao Baod0f30882016-11-03 23:52:01 -0700695 return StringValue("");
Tao Baod0f30882016-11-03 23:52:01 -0700696 }
Tianjie Xu1536db82019-05-14 10:54:43 -0700697 return StringValue("t");
Tao Baod0f30882016-11-03 23:52:01 -0700698}
699
Doug Zongkerc87bab12013-11-25 13:53:25 -0800700// Immediately reboot the device. Recovery is not finished normally,
701// so if you reboot into recovery it will re-start applying the
702// current package (because nothing has cleared the copy of the
703// arguments stored in the BCB).
704//
705// The argument is the partition name passed to the android reboot
706// property. It can be "recovery" to boot from the recovery
707// partition, or "" (empty string) to boot from the regular boot
708// partition.
Tianjie Xuc4447322017-03-06 14:44:59 -0800709Value* RebootNowFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
710 if (argv.size() != 2) {
711 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
712 argv.size());
Tao Baobedf5fc2016-11-18 12:01:26 -0800713 }
Doug Zongkerc87bab12013-11-25 13:53:25 -0800714
Tao Baobedf5fc2016-11-18 12:01:26 -0800715 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800716 if (!ReadArgs(state, argv, &args)) {
Tao Baobedf5fc2016-11-18 12:01:26 -0800717 return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name);
718 }
719 const std::string& filename = args[0];
720 const std::string& property = args[1];
Doug Zongkerc87bab12013-11-25 13:53:25 -0800721
Tao Baobedf5fc2016-11-18 12:01:26 -0800722 // Zero out the 'command' field of the bootloader message. Leave the rest intact.
723 bootloader_message boot;
724 std::string err;
725 if (!read_bootloader_message_from(&boot, filename, &err)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800726 LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err;
Tao Baobedf5fc2016-11-18 12:01:26 -0800727 return StringValue("");
728 }
729 memset(boot.command, 0, sizeof(boot.command));
730 if (!write_bootloader_message_to(boot, filename, &err)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800731 LOG(ERROR) << name << "(): Failed to write to \"" << filename << "\": " << err;
Tao Baobedf5fc2016-11-18 12:01:26 -0800732 return StringValue("");
733 }
Doug Zongkerc87bab12013-11-25 13:53:25 -0800734
Tao Bao782dcc12019-04-29 11:23:16 -0700735 Reboot(property);
Doug Zongkerc87bab12013-11-25 13:53:25 -0800736
Tao Baobedf5fc2016-11-18 12:01:26 -0800737 sleep(5);
738 return ErrorAbort(state, kRebootFailure, "%s() failed to reboot", name);
Doug Zongkerc87bab12013-11-25 13:53:25 -0800739}
740
741// Store a string value somewhere that future invocations of recovery
742// can access it. This value is called the "stage" and can be used to
743// drive packages that need to do reboots in the middle of
744// installation and keep track of where they are in the multi-stage
745// install.
746//
747// The first argument is the block device for the misc partition
748// ("/misc" in the fstab), which is where this value is stored. The
749// second argument is the string to store; it should not exceed 31
750// bytes.
Tianjie Xuc4447322017-03-06 14:44:59 -0800751Value* SetStageFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
752 if (argv.size() != 2) {
753 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
754 argv.size());
Tao Baobedf5fc2016-11-18 12:01:26 -0800755 }
Doug Zongkerc87bab12013-11-25 13:53:25 -0800756
Tao Baobedf5fc2016-11-18 12:01:26 -0800757 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800758 if (!ReadArgs(state, argv, &args)) {
Tao Baobedf5fc2016-11-18 12:01:26 -0800759 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
760 }
761 const std::string& filename = args[0];
762 const std::string& stagestr = args[1];
Doug Zongkerc87bab12013-11-25 13:53:25 -0800763
Tao Baobedf5fc2016-11-18 12:01:26 -0800764 // Store this value in the misc partition, immediately after the
765 // bootloader message that the main recovery uses to save its
766 // arguments in case of the device restarting midway through
767 // package installation.
768 bootloader_message boot;
769 std::string err;
770 if (!read_bootloader_message_from(&boot, filename, &err)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800771 LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err;
Tao Baobedf5fc2016-11-18 12:01:26 -0800772 return StringValue("");
773 }
774 strlcpy(boot.stage, stagestr.c_str(), sizeof(boot.stage));
775 if (!write_bootloader_message_to(boot, filename, &err)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800776 LOG(ERROR) << name << "(): Failed to write to \"" << filename << "\": " << err;
Tao Baobedf5fc2016-11-18 12:01:26 -0800777 return StringValue("");
778 }
Doug Zongkerc87bab12013-11-25 13:53:25 -0800779
Tao Baobedf5fc2016-11-18 12:01:26 -0800780 return StringValue(filename);
Doug Zongkerc87bab12013-11-25 13:53:25 -0800781}
782
783// Return the value most recently saved with SetStageFn. The argument
784// is the block device for the misc partition.
Tianjie Xuc4447322017-03-06 14:44:59 -0800785Value* GetStageFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
786 if (argv.size() != 1) {
787 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
Tao Baobedf5fc2016-11-18 12:01:26 -0800788 }
Doug Zongkerc87bab12013-11-25 13:53:25 -0800789
Tao Baobedf5fc2016-11-18 12:01:26 -0800790 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800791 if (!ReadArgs(state, argv, &args)) {
Tao Baobedf5fc2016-11-18 12:01:26 -0800792 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
793 }
794 const std::string& filename = args[0];
Doug Zongkerc87bab12013-11-25 13:53:25 -0800795
Tao Baobedf5fc2016-11-18 12:01:26 -0800796 bootloader_message boot;
797 std::string err;
798 if (!read_bootloader_message_from(&boot, filename, &err)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800799 LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err;
Tao Baobedf5fc2016-11-18 12:01:26 -0800800 return StringValue("");
801 }
Doug Zongkerc87bab12013-11-25 13:53:25 -0800802
Tao Baobedf5fc2016-11-18 12:01:26 -0800803 return StringValue(boot.stage);
Doug Zongkerc87bab12013-11-25 13:53:25 -0800804}
805
Tianjie Xuc4447322017-03-06 14:44:59 -0800806Value* WipeBlockDeviceFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
807 if (argv.size() != 2) {
808 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
809 argv.size());
Tao Bao358c2ec2016-11-28 11:48:43 -0800810 }
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -0800811
Tao Bao358c2ec2016-11-28 11:48:43 -0800812 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800813 if (!ReadArgs(state, argv, &args)) {
Tao Bao358c2ec2016-11-28 11:48:43 -0800814 return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
815 }
816 const std::string& filename = args[0];
817 const std::string& len_str = args[1];
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -0800818
Tao Bao358c2ec2016-11-28 11:48:43 -0800819 size_t len;
820 if (!android::base::ParseUint(len_str.c_str(), &len)) {
821 return nullptr;
822 }
Tianjie Xu22f11202018-08-27 10:50:31 -0700823
Tianjie Xu1536db82019-05-14 10:54:43 -0700824 auto updater_runtime = state->updater->GetRuntime();
825 int status = updater_runtime->WipeBlockDevice(filename, len);
826 return StringValue(status == 0 ? "t" : "");
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -0800827}
828
Tianjie Xuc4447322017-03-06 14:44:59 -0800829Value* EnableRebootFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
830 if (!argv.empty()) {
831 return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %zu", name,
832 argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800833 }
Tianjie Xu1536db82019-05-14 10:54:43 -0700834 state->updater->WriteToCommandPipe("enable_reboot");
Tao Bao039f2da2016-11-22 16:29:50 -0800835 return StringValue("t");
Doug Zongkerc704e062014-05-23 08:40:35 -0700836}
837
Tianjie Xuc4447322017-03-06 14:44:59 -0800838Value* Tune2FsFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
839 if (argv.empty()) {
840 return ErrorAbort(state, kArgsParsingFailure, "%s() expects args, got %zu", name, argv.size());
Tao Bao039f2da2016-11-22 16:29:50 -0800841 }
Michael Rungeacf47db2014-11-21 00:12:28 -0800842
Tao Bao039f2da2016-11-22 16:29:50 -0800843 std::vector<std::string> args;
Tianjie Xuc4447322017-03-06 14:44:59 -0800844 if (!ReadArgs(state, argv, &args)) {
Tao Bao039f2da2016-11-22 16:29:50 -0800845 return ErrorAbort(state, kArgsParsingFailure, "%s() could not read args", name);
846 }
Michael Rungeacf47db2014-11-21 00:12:28 -0800847
Tao Bao3d69f0d2018-12-20 09:44:06 -0800848 // tune2fs expects the program name as its first arg.
849 args.insert(args.begin(), "tune2fs");
Tianjie Xu1536db82019-05-14 10:54:43 -0700850 auto updater_runtime = state->updater->GetRuntime();
851 if (auto result = updater_runtime->Tune2Fs(args); result != 0) {
Tao Bao039f2da2016-11-22 16:29:50 -0800852 return ErrorAbort(state, kTune2FsFailure, "%s() returned error code %d", name, result);
853 }
854 return StringValue("t");
Michael Rungeacf47db2014-11-21 00:12:28 -0800855}
856
Doug Zongker9931f7f2009-06-10 14:11:53 -0700857void RegisterInstallFunctions() {
Tao Bao039f2da2016-11-22 16:29:50 -0800858 RegisterFunction("mount", MountFn);
859 RegisterFunction("is_mounted", IsMountedFn);
860 RegisterFunction("unmount", UnmountFn);
861 RegisterFunction("format", FormatFn);
862 RegisterFunction("show_progress", ShowProgressFn);
863 RegisterFunction("set_progress", SetProgressFn);
Tao Bao039f2da2016-11-22 16:29:50 -0800864 RegisterFunction("package_extract_file", PackageExtractFileFn);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700865
Tao Bao039f2da2016-11-22 16:29:50 -0800866 RegisterFunction("getprop", GetPropFn);
867 RegisterFunction("file_getprop", FileGetPropFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700868
Tao Bao039f2da2016-11-22 16:29:50 -0800869 RegisterFunction("apply_patch_space", ApplyPatchSpaceFn);
Tao Bao5609bc82018-06-20 00:30:48 -0700870 RegisterFunction("patch_partition", PatchPartitionFn);
871 RegisterFunction("patch_partition_check", PatchPartitionCheckFn);
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700872
Tao Bao039f2da2016-11-22 16:29:50 -0800873 RegisterFunction("wipe_block_device", WipeBlockDeviceFn);
Doug Zongker52b40362014-02-10 15:30:30 -0800874
Tao Bao039f2da2016-11-22 16:29:50 -0800875 RegisterFunction("read_file", ReadFileFn);
Tao Bao039f2da2016-11-22 16:29:50 -0800876 RegisterFunction("write_value", WriteValueFn);
Doug Zongker512536a2010-02-17 16:11:44 -0800877
Tao Bao039f2da2016-11-22 16:29:50 -0800878 RegisterFunction("wipe_cache", WipeCacheFn);
Doug Zongkerd0181b82011-10-19 10:51:12 -0700879
Tao Bao039f2da2016-11-22 16:29:50 -0800880 RegisterFunction("ui_print", UIPrintFn);
Doug Zongkera3f89ea2009-09-10 14:10:48 -0700881
Tao Bao039f2da2016-11-22 16:29:50 -0800882 RegisterFunction("run_program", RunProgramFn);
Doug Zongkerc87bab12013-11-25 13:53:25 -0800883
Tao Bao039f2da2016-11-22 16:29:50 -0800884 RegisterFunction("reboot_now", RebootNowFn);
885 RegisterFunction("get_stage", GetStageFn);
886 RegisterFunction("set_stage", SetStageFn);
Doug Zongkerc704e062014-05-23 08:40:35 -0700887
Tao Bao039f2da2016-11-22 16:29:50 -0800888 RegisterFunction("enable_reboot", EnableRebootFn);
889 RegisterFunction("tune2fs", Tune2FsFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700890}